Electrical Specifications
Frequency sensitivity specifications
For voltage measurements
Input range
Minimum sensitivity (rms sine wave)
5 Hz to 50 kHz
Maximum input for specified accuracy1
U1231A
50 mV
120 mV
0.6 V
U1232A
50 mV
120 mV
0.6 V
U1233A
50 mV
120 mV
0.6 V
600 mV in Scale mode
600 mV
6 V
60 V
5.0 V
5.0 V
5.0 V
600 V
50 V
50 V
50 V
Notes:
1. Maximum input for specified accuracy, refer to “AC specifications” on page 106 of the User Guide.
For current measurements
Input range
Minimum sensitivity (rms sine wave)
45 Hz to 5 kHz
Maximum input for specified accuracy1
U1232A
30 μA
30 μA
U1233A
60 μA
600 μA
6 A
30 μA
30 μA
0.5 A
0.5 A
10 A
0.5 A
0.5 A
Notes:
1. Maximum input for specified accuracy, refer to “AC specifications” on page 106 of the User Guide.
Scale transfer (mV)
Accuracy (% of reading + counts of least significant digit)
Range
Resolution
U1231A/U1232A/U1233A
DC 600 mV
0.1 mV
0.5% + 22
1.0 % + 3 @ 45 Hz to 500 Hz
2.0 % + 3 @ 500 Hz to 1 kHz
AC 600 mV
0.1 mV
Notes:
1. Overload protection: 600 Vrms for short circuits with < 0.3 A current.
2. The accuracy of the DC 600 mV range is specified after the Null function is used to subtract the thermal effect (by shorting the test leads).
3. Input impedance: 10 MΩ (typical).
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